Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion

doi:10.1016/j.jlp.2007.04.036

IMECH-IR > 力学所知识产出(1956-2008)

	Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion
	Pu Y K; Jia F; Wang SF(王双峰); Skjold T; Pu, YK (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
发表期刊	JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
	2007
卷号	20 期号:4-6 页码:462-469
ISSN	0950-4230
摘要	The reactivity of a combustible dust cloud is traditionally characterized by the so-called K-St value, defined as the maximum rate of pressure rise measured in constant volume explosion vessels, multiplied with the cube root of the vessel volume. The present paper explores the use of an alternative parameter, called the maximum effective burning velocity (u(eff,max)), which also is derived from pressure-time histories obtained in constant volume explosion experiments. The proposed parameter describes the reactivity of fuel-air mixtures as a function of the dispersion-induced turbulence intensity. Procedures for estimating u(eff,max) from tests in both spherical and cylindrical explosion vessels are outlined, and examples of calculated values for various fuel-air mixtures in closed vessels of different sizes and shapes are presented. Tested fuels include a mixture of 7.5% methane in air, and suspensions of 500 g/m(3) cornstarch in air and 500 g/m(3) coal dust in air. Three different test vessels have been used: a 20-1 spherical vessel and two cylindrical vessels, 7 and 221. The results show that the estimated maximum effective burning velocities are less apparatus dependent than the corresponding K-St values. (C) 2007 Elsevier Ltd. All rights reserved.
关键词	Dust Explosion Constant Volume Combustion Maximum Effective Burning Velocity
DOI	10.1016/j.jlp.2007.04.036
收录类别	SCI
语种	英语
WOS记录号	WOS:000250636900022
关键词[WOS]	SPHERICAL VESSELS ; EXPLOSIONS ; TURBULENCE
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58447
专题	力学所知识产出(1956-2008)
通讯作者	Pu, YK (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Pu Y K,Jia F,Wang SF,et al. Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion[J]. JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES,2007,20,4-6,:462-469.
APA	Pu Y K,Jia F,王双峰,Skjold T,&Pu, YK .(2007).Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion.JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES,20(4-6),462-469.
MLA	Pu Y K,et al."Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion".JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES 20.4-6(2007):462-469.

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